Salt shaker



FIG. 1 is a front elevational view of a salt shaker showing my new design;

FIG. 2 is a side elevational view thereof, as seen from the right side in FIG. 1;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is another side elevational view thereof, as seen from the left side in FIG. 1; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for salt shaker, as shown and described. 